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| author | Xiang Zhang <angwerzx@126.com> | 2017-02-20 04:25:16 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-02-20 04:25:16 (GMT) |
| commit | d0e8212ed70445cc3d48b0d4ae7c9cb480004010 (patch) | |
| tree | a9d646b5f5aa9f193fb05b124c53d4f91ade1de1 | |
| parent | e395c4dbe19115aaab315c2a113b172e9fef307a (diff) | |
| download | cpython-d0e8212ed70445cc3d48b0d4ae7c9cb480004010.zip cpython-d0e8212ed70445cc3d48b0d4ae7c9cb480004010.tar.gz cpython-d0e8212ed70445cc3d48b0d4ae7c9cb480004010.tar.bz2 | |
bpo-29347: Fix possibly dereferencing undefined pointers when creating weakref objects (#128)
| -rw-r--r-- | Misc/NEWS | 3 | ||||
| -rw-r--r-- | Objects/weakrefobject.c | 2 |
2 files changed, 5 insertions, 0 deletions
@@ -10,6 +10,9 @@ What's New in Python 3.7.0 alpha 1? Core and Builtins ----------------- +- bpo-29347: Fixed possibly dereferencing undefined pointers + when creating weakref objects. + - bpo-29438: Fixed use-after-free problem in key sharing dict. - bpo-29546: Set the 'path' and 'name' attribute on ImportError for ``from ... import ...``. diff --git a/Objects/weakrefobject.c b/Objects/weakrefobject.c index d12db91..da05950 100644 --- a/Objects/weakrefobject.c +++ b/Objects/weakrefobject.c @@ -24,6 +24,8 @@ init_weakref(PyWeakReference *self, PyObject *ob, PyObject *callback) { self->hash = -1; self->wr_object = ob; + self->wr_prev = NULL; + self->wr_next = NULL; Py_XINCREF(callback); self->wr_callback = callback; } |